Home Energy Meter

How to get your interval meter data

You need a NEM12 interval meter data export from your electricity distributor's portal. Most households with a smart meter (Type 4 or 4a) can download this for free.

  1. Ausgrid (NSW) — Log in at myaccount.ausgrid.com.au → Energy Usage → Download Data (CSV, 5-min intervals)
  2. Endeavour Energy (NSW) — Log in at portal.endeavourenergy.com.au → My Usage → Download
  3. Citipower / Powercor (VIC) — Log in at myenergy.citipower.com.au or myenergy.powercor.com.au → Energy Data → Export
  4. AusNet (VIC) — Log in at connect.ausnetservices.com.au → Usage Data → Download CSV
  5. SA Power Networks (SA) — Log in at myaccount.sapowernetworks.com.au → Energy Usage → Download Interval Data
  6. Energex / Ergon (QLD) — Log in at myq.energex.com.au or myenergy.ergon.com.au → Energy Reports → Download

Tip: select the longest date range available (up to 2 years) for the most accurate annual cost estimate. The file will have a .csv extension.

Advanced: Proxy setup (required if CDR data is blocked)

The AER CDR hub blocks direct browser requests (CORS policy). You need a proxy to fetch plan data.

Option A — Local proxy (easiest): Run python proxy.py in the HomeEnergy/ folder, then set the URL to http://localhost:8765.
Option B — Cloudflare Worker (free, always-on): Follow instructions in HomeEnergy/cloudflare-worker.js, then paste your Worker URL above.

No data in selected date range.
Enter my current plan rates (for comparison)
Peak
Define when peak rates apply. Off-peak is used for any unmatched time.
Shoulder
Optional. Matched after peak, before falling back to off-peak.
EV
Optional. Applied to all usage during the specified hours. Flat rate replaces the normal rate; credit subtracts from it (e.g. Engie 10c/kWh credit).
Off-peak
Applies to all times not covered by peak or shoulder. Leave blank for flat-rate plans.
No schedule needed — off-peak is the fallback for all other times.

Rates in $/kWh (e.g. 0.462, not 46.2). For a flat-rate plan, enter the rate under Peak with no schedule periods.

Compare another plan manually
Peak
Define when peak rates apply. Off-peak is used for any unmatched time.
Shoulder
Optional. Matched after peak, before falling back to off-peak.
EV
Optional. Applied to all usage during the specified hours.
Off-peak
Applies to all times not covered by peak or shoulder. Leave blank for flat-rate plans.
No schedule needed — off-peak is the fallback for all other times.

Rates in $/kWh (e.g. 0.462, not 46.2). For a flat-rate plan, enter the rate under Peak with no schedule periods.

EV charging cost model

Calculates the additional cost to charge your EV under each plan, based on your daily driving distance and charging window. All electricity consumed during charging hours is billed at the plan's applicable rate for those hours. Charger efficiency accounts for energy lost as heat during charging (default 92%).

Plan Comparison

Monthly Cost Comparison